Solar Pi Platter

The Solar Pi Platter is a versatile expansion
board for the Raspberry Pi Zero™ and Pi Zero
W™ computers that provides power from a
single-cell Rechargeable Lithium-Ion battery,
additional peripherals including analog
inputs, PWM outputs, USB ports and optional
hardwired ethernet. A real-time clock allows
for scheduled power cycling. Dual charging
sources support both low-impedance devices
like common USB chargers and high-impedance
devices like Solar Panels. The Solar Pi
Platter allows the Pi Zero to be used in a
wide variety of applications ranging from
solar-powered remote data acquisition systems
to battery-backed file servers.

Features

Single-cell Lithium Ion battery
management system supplying up to 10W power
at 5V

Zip file with pre-compiled talkpp utility and
ppd daemon for loading into /usr/local/bin on
your Pi. talkpp is a simple utility program
that allows you to communicate directly with
the device or you can use it in scripts. ppd
is a daemon (started in /etc/rc.local with
the command "/usr/local/bin/ppd -p 23000 -r
-d &") which provides network and tty
access to the device as well as automatically
shuts down the pi in a controlled fashion
when the battery voltage is too low.